n.（细胞）内吞作用，内噬作用

Endocytosis is the cellular process by which substances are engulfed into a cell through the formation of a vesicle from the plasma membrane.
细胞内吞是通过细胞膜形成囊泡将物质摄入细胞的过程。
The endocytic pathway involves receptor-mediated endocytosis, where specific molecules bind to receptors on the cell surface and initiate the process.
内吞途径包括受体介导的内吞，其中特定分子与细胞表面的受体结合并启动该过程。
Clathrin-coated pits are a common site for endocytosis, as they help in the formation of coated vesicles containing internalized material.
网格蛋白包被的小窝是内吞的常见部位，因为它们有助于形成包含摄取物质的有被膜小泡。
Pinocytosis, or "cell drinking," is an example of non-specific endocytosis, where cells take in extracellular fluid containing dissolved nutrients.
胞饮（pinocytosis）或“细胞喝水”是非特异性内吞的一个例子，细胞会吸收含有溶解营养物的细胞外液。
Endocytosis plays a crucial role in maintaining the balance of ions and molecules within a cell, as well as in waste removal.
内吞对于维持细胞内的离子和分子平衡以及废物清除至关重要。
Receptor-mediated endocytosis ensures that only specific molecules, like hormones or growth factors, enter the cell, preventing unwanted substances from entering.
受体介导的内吞确保只有特定的分子，如激素或生长因子，进入细胞，防止不想要的物质进入。
Phagocytosis is a form of endocytosis where immune cells engulf large particles, such as bacteria or debris, for destruction or recycling.
吞噬作用是内吞的一种形式，免疫细胞会吞噬大颗粒，如细菌或碎片，进行破坏或回收。
Endocytosis is facilitated by various signaling pathways, which regulate the timing and efficiency of vesicle formation and transport.
内吞过程由多种信号传导途径辅助，这些途径调控囊泡的形成和运输的时间和效率。
In endosomal sorting, proteins and lipids are tagged for degradation, recycling, or delivery to their appropriate destinations within the cell after endocytosis.
在内体分选中，蛋白质和脂质会在内吞后被标记以供降解、回收或送达细胞内的适当位置。
Cells use endocytosis to control the surface expression of membrane proteins, ensuring that they remain functional and don't accumulate excessively.
细胞利用内吞来控制膜蛋白的表面表达，保证它们保持功能且不会过度积累。